Thanks for the feedback! That's the first confirmation I have found that the focus bracketing feature of the EOS RP works with Sigma lenses. http://www.photomacrography.net/forum/v ... =8&t=41629
Can I push the resolution of a 1:1 macro lens?
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Re: Can I push the resolution of a 1:1 macro lens?
Re: Can I push the resolution of a 1:1 macro lens?
I created a new thread to avoid polluting this one or the OP's unrelated question.
http://www.photomacrography.net/forum/v ... 25&t=42539
- enricosavazzi
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Re: Can I push the resolution of a 1:1 macro lens?
I just published a page on my site dealing with tests of four legacy macro lenses with a 2x teleconverter on Micro 4/3. There may still be some mistakes to correct, and I might decide to add some examples with "real" subjects.
http://savazzi.net/photography/olymc-20_macro.html
--ES
Re: Can I push the resolution of a 1:1 macro lens?
Enrico, those are excellent tests! It is striking to see that the best lenses still give best results wide open when used on a good teleconverter; this is not normally the case for cheap teleconverters, which introduce their own significant aberrations, which in turn are redued by stopping down the prime lens.
In the intro to the article, you mention two of the ways to get higher magnification out of a 1x macro lens, but you leave out what is potentially the best way, reversing it not on extension tubes but on a tube lens. I think it would be a more complete article if you mention that option and its EA advantage.
In the intro to the article, you mention two of the ways to get higher magnification out of a 1x macro lens, but you leave out what is potentially the best way, reversing it not on extension tubes but on a tube lens. I think it would be a more complete article if you mention that option and its EA advantage.
- enricosavazzi
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Re: Can I push the resolution of a 1:1 macro lens?
That is a fair point, I added a short discussion and a couple of links about the other methods.Lou Jost wrote: ↑Tue Oct 13, 2020 6:29 am[..]In the intro to the article, you mention two of the ways to get higher magnification out of a 1x macro lens, but you leave out what is potentially the best way, reversing it not on extension tubes but on a tube lens. I think it would be a more complete article if you mention that option and its EA advantage.
--ES
Re: Can I push the resolution of a 1:1 macro lens?
I added a short discussion and a couple of links about the other methods.
Thanks, that will be helpful to many.
I could not find the new additions, am I missing something?
- enricosavazzi
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Re: Can I push the resolution of a 1:1 macro lens?
Perhaps there is a server cache or something else that does not update immediately.
--ES
Re: Can I push the resolution of a 1:1 macro lens?
Yes, it is there now. Maybe my computer was drawing from its cache.
Re: Can I push the resolution of a 1:1 macro lens?
Your server issues only a "Last-Modified" header which might not trigger a cache validation in all situations. Try to add an "ETag" or simply no-cache and related cache headers.enricosavazzi wrote: ↑Wed Oct 14, 2020 9:20 amPerhaps there is a server cache or something else that does not update immediately.